ES Wireless Bluetooth 4.0 Handsfree Headset Headphone Earbuds for Smartphones (Black) Bluetooth 4.0 with HD sound for high-fidelity music and clear speech, You can begin enjoying high quality HD sound instantly. Awesome ear tips, made from biological Silica gel, safe, stable and not easy to slide. Integrated multi-point technology lets you connect two devices at once, so you can seamlessly switch between your business and personal phones. Dual Bluetooth devices connection; Bluetooth battery power indication for IOS system. Suitable for all Bluetooth enabled device, Samsung, Motorola, Nokia, HTC, Sony mobile phones, iPhone, iPad, tablet PC.